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Single Family ResidenceResidential
$583,902$328 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $269,000 on Aug 31, 2011

285 THOMAS AVE SW

RENTON, WA 98057
4
Beds
1.8
Baths
1,780 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1905
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$584K
$529K low$639K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$269,000 · Aug 31, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,947 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$641,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$422,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$219,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$659,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$641,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyKING
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2005
Lot (acres)The size of the land the home sits on, from county records.0.28
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 160 ft²Porch · 130 ft²

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Renton High SchoolD-
High · Grades 9–12 · 0.8 mi
M
Dimmitt Middle SchoolB-
Middle · Grades 6–8 · 0.9 mi
E
Lakeridge Elementary SchoolC
Elementary · Grades KG–5 · 1.5 mi

District: Renton School District

Neighborhood · ZIP 98057These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.149
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.263

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.15,169
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,407 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,518
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,695
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.39 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.43%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

285 Thomas Ave Sw measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 78% of homes in King County
  • Costs less per square foot than 88% of homes in King County
  • Has a bigger lot than 69% of homes in Renton 98057
  • Among the oldest homes in King County

What homes are worth in Renton 98057

Each bar is how many homes fall in that price range. The marker is this home.

This home
$230K$1.3M

This home is worth more than 58% of homes in Renton 98057.

How it measures up in Renton 98057

The dot is this home. The mark in the middle is the typical home in Renton 98057.

Estimated value$583,902
CheaperTypical $542,476Pricier

Pricier than 58% of homes nearby

Price per ft²$328
CheaperTypical $355Pricier

Pricier than 37% of homes nearby

Living area1,780 ft²
SmallerTypical 1,500 ft²Bigger

Bigger than 59% of homes nearby

Lot size0.28 ac
SmallerTypical 0.17 acBigger

Bigger than 69% of homes nearby

Year built1905
OlderTypical 1960Newer

Newer than 4% of homes nearby

How 285 Thomas Ave Sw ranks against every home in each area.
MeasureThis homeRenton 98057King County
Estimated valuepricier than$583,90258% of homes22% of homes
Price per ft²pricier than$32837% of homes12% of homes
Living areabigger than1,780 ft²59% of homes47% of homes
Lot sizebigger than0.28 ac69% of homes66% of homes
Year builtnewer than19054% of homesalmost no homes

About 285 Thomas Ave Sw

How much is 285 Thomas Ave Sw, Renton, WA worth?

The TopHap Estimate for 285 Thomas Ave Sw, Renton, WA is $583,902 as of Sep 24, 2026. The likely range is $528,724 to $639,080. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 285 Thomas Ave Sw, Renton, WA last sell?

285 Thomas Ave Sw, Renton, WA last sold on Aug 31, 2011 for $269,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 285 Thomas Ave Sw, Renton, WA?

285 Thomas Ave Sw, Renton, WA has 4 bedrooms, 1.8 bathrooms, 1,780 square feet of living space and a 0.28-acre lot.

When was 285 Thomas Ave Sw, Renton, WA built?

285 Thomas Ave Sw, Renton, WA was built in 1905, making it 121 years old. The building has 1 story.

What schools serve 285 Thomas Ave Sw, Renton, WA?

285 Thomas Ave Sw, Renton, WA is assigned to Renton High School (high), rated D-; Dimmitt Middle School (middle), rated B-; Lakeridge Elementary School (elementary), rated C. All sit in Renton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 285 Thomas Ave Sw, Renton, WA compare to other homes in Renton 98057?

Among the 2,593 homes in Renton 98057, it is worth more than 58% of them ($583,902 against a typical $542,476), its price per square foot is higher than 37% of them ($328 against a typical $355), it is bigger than 59% of them (1,780 ft² against a typical 1,500 ft²), its lot is bigger than 69% of them (0.28 ac against a typical 0.17 ac) and it is newer than 4% of them (1905 against a typical 1960). Measured against all of King County, it is worth more than 22% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 285 Thomas Ave Sw, Renton, WA?

The 2026 property tax bill for 285 Thomas Ave Sw, Renton, WA was $6,947. The county assessed it at $641,000.

More homes on Thomas Ave Sw

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